Steam-condenser.



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` Unirse States 'STUART E. FREEMAN, OF ST. LOUIS, MISSOURI.

STEAM-CONDENSER.

:SPECIFICATION forming part of Letters Patent No. 672,21 1. dated April. 16, 1901.

Application tiled June 8, 1900.

To all whmn t 1v1/Ly concern:

Be it known that I, STUART E. FREEMAN, a citizen of the United States, residing at the' city of St. Louis, in the State of Missouri, have invented certain new and vuseful Improvements in Steam-Condensers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specitication. v

My i n ven tion relates to a condenser particularlydesigned for use in condensing steam produced in the operation of motor-vehicles propelled by steam-power.

Wy invention consists in features ot' novelty hereinafter fully described, and pointed out in the claims.

Figure I is a top or plan view of my improved condenser. Fig. II is aside elevation ofthe condenser shown applied to a vehicle illustrated in dotted lines. Fig. III is a crosssectional view taken on the line III III, Fig. I, through the Water-receiving pipes. Fig. IV is a cross-sectional view taken on the Iine IV IV, Fig. I, through the exliaust-steam-discharge tube. Fig. Vis a cross-sectional view taken on the line V V, Fig. I, through the steam-receiving pipe and muffler-tube therein. Fig. VI is an enlarged view, partly in section, taken on the line VI VI, Fig. I.

The steam to be condensed enters the condenser through the steam-conveying pipes 1, (see Figs. I and II,) said pipes being connected to a steam-receiving pipe 2, that contains a perforated muffler-tube 3, (see Figs. I and V,) the ends oi" which are seated in the pipes 1 or the unions connecting the pipes 1. and 2. The steam passing to the receivingpipe 2 first enters the muffler-tube 3 at the ends thereof and passes through the perforations contained by said mufIier-tube into the space surrounding said tube Within the steam receiving pipe. Connected to the steam-receiving pipe 2 are a series of coolingtubes 4, that have communication with the interior of the pipe 2 and lead toa condensed- Water-receiving pipe 5, into Which they enter, as seen in Fig. III. The pipe 2 is preferably located above the level of the pipe 5, so that the coolingtubes 4 extend on an incline between said pipes, asillustrated in Fig. II, in order to permit the air to strike Serial No. 19,493, (No modem said cooling-tubes in such manner as to efficiently cool them and the steam passing therethrough. The steam passing into said cooling-tubes is therefore cooled and condensed before it reaches the water-receiving pipe 5. From the water-receiving pipe 5 the water passes into the auxiliary water-receiving pipe o', located immediately beneath the pipe 5, through a water-discharge pipe 7, provided witha graVitycheck-valve 8. For the purpose of removing the water from the auxiliary pipe 6 and discharging it into the Steam-boiler water-supply tank carried by the vehicle 1 providea conveying-pipe 9, that leads from the auxiliary pipe 6 to the tank 10, (shown in dotted lines in Fig. IL) and a suitably-operated airpump 11, that is connected by an air-pipe 12 to the pipe t. When water has collected in the auxiliary waterpipe 6 from the condensation ot' steam, the air-pump 1I is operated, forcing air through the air-pipe 12 into the pipe 6, and the pressure of the air against the gravity check- Valve 8 causes said valve to be closed, thereby closing communication between the pipes 5 and 6 through the water-discharge pipe 7, and the air-pressure forces the Water from the pipe 6 through the conveying-pipe 9 to the tank IO for reuse in the steam-boiler.

A small percentage of the steam may not be condensed in passing through the coolingtubes 4 into the Water-receiving pipes 5, and for the purpose of disposing of such uncondensed steam I provide an exhaust-pipe 13, connected to the water-receiving pipe 5 at the end thereof opposite the connection of the pipes 9 and 12, said exhaust-steam pipe being joined to a discharge steam-pipe 14, provided with a nozzle 15, through Which the uncondensed steam escapes to the outside air.

No particular means for supporting the condenser upon-the vehicle are herein shown or described, but the parts may be upheld in any suitable manner.

I claim as my invention- 1. In a steam-condenser, the combination of a steam-receiving pipe, a main water-receiving pipe,a series of straight cooling-tubes providing communication between said pipes, an auxiliary Water-receiving pipe located beneath and parallel With said main water-pi pe and having communication with said main IOO water-receiving pipe,.and means for discharging the Water of condensation from said auxiliary pipe, substantially as described.

2. In a steam-condenser, the combination of a steam -receiving pipe, a muffler tube therein, a main water-receiving pipe, a series of straight cooling-tubes providing communication between said pipes, an auxiliary water-receiving pipe located beneath and parallel with said main water-pipe and having communication with said main water-receiving pipe,an=d?mleans for discharging the water of condensation from said auxiliary pipe, substantially as described.

3. In a steam-condenser, the combination ofa steam-receiving pipe, a main water-receiving pipe, cooling-tubes' providing communicationl between said steamY and Water pipes, an auxiliary water-receiving pipe, a

discharge-pipe leading fromA said main pipeV into said auxiliary pipe, a valve carried by saidx discharge-pipe, and means for discharging' the water from said auxiliary pipe, substantially as described.

-ter-pipe and extending parallel therewith,

means of communication between said main Aand auxiliary pipes, a water-conveying pipe leading from said auxiliary pipe, and an airpump having communication with said aux- Eiliary pipe, substantially as described.

5. In a steam-condenser, the combination lof'a steam-conveying pipe, a water-receiving pipe, cooling-tubes providing communication between said pipes, an exhaust-steam pipe connected to said water-receiving pipe, and a steam-discharge pipe having' a nozzle and connected to said? exhaust-steam pipe, substantially as described.

STUART E. FREEMAN. In presence of- E. S. KNIGHT, N. V. ALEXANDER. 

